JPH05202643A - Membrane roof structure - Google Patents

Abstract

PURPOSE:To sharply enlarge the using range of a large space construction by making the opening and closing of a membrane body possible to freely execute the taking in and cutting off of natural light. CONSTITUTION:A transparent membrane member 20a is fixed between the upper end parts of an arch beam 16 in liquid-tight structure. Both the lateral ends of a opaque membrane member 22a cut about along a space shape surrounded by the lower end of the arch beam 16 and an outer wall 14 are inserted in a guide rail 26a attached to the lower end of the arch beam 16. The end of the opaque membrane member 22a is relatively movably wound on the outer periphery of a wire 32 fitted in a guide rail 26a. The guide rail 26a and the opaque membrane member 22a are separated at the central part of the arch beam 16. A membrane roof is provided with a driving means 44 to feed the wire 32 in order.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a membrane roof structure whose membrane can be opened and closed.

[0002]

2. Description of the Related Art In recent years, structures such as large space facilities having a pillarless structure have come to be constructed with a membrane roof structure in which a roof portion is covered with a membrane. The purpose of use of such a large space facility is remarkably expanded, and it can be used, for example, as an indoor stadium such as baseball or as a large event venue.

[0003]

However, in such a large space facility using a conventional membrane roof structure, it is desirable to take in natural light indoors for sports such as baseball, but depending on the type of event, It may be more effective to use artificial lighting to block out natural light.

However, if the film body is limited to either a transparent film or an opaque film, there is a problem that the use of the large space facility is greatly limited.

In view of such conventional problems, the present invention allows the opening and closing of the film body to freely take in and block natural light, thereby greatly expanding the use of a large space facility. An object is to provide a membrane roof structure that can be formed.

[0006]

In order to achieve such an object, in the first structure of the present invention, the guide rails arranged along the cross-sectional shape of the membrane roof and forming a pair, and these guide rails form a pair. A flexible film that covers the space between the guide rails, a moving member that is attached to both ends in the width direction of the flexible film, and is moved by being guided by the guide rail, and a flexible film that moves the moving member and moves with the moving member. And a drive means for opening and closing.

Further, in order to achieve the above object, in the second structure of the present invention, the transparent film that fixedly covers the outer portion of the membrane roof, and the cross-sectional shape of the membrane roof in the inner portion of the transparent membrane. A pair of guide rails that are arranged along the
A flexible opaque film covering between the pair of guide rails, a moving member attached to both widthwise ends of the opaque film, moved by being guided by the guide rail, and moving the moving member, Drive means for opening and closing the opaque film together with the moving member.

[0008]

In the first structure of the membrane roof structure according to the present invention having the above-described structure, the movable member is moved along the guide rail via the driving means to move the flexible film together with the movable member. Since it can be opened and closed, by forming this flexible film with an opaque film, natural light can be freely taken in and blocked.

Further, in the second structure of the membrane roof structure according to the present invention, the outer portion of the membrane roof is fixedly covered with the transparent film, and the inner portion of the transparent film is the same as the first structure. Since the opaque film is opened and closed with this configuration, the transparent film and the opaque film form a double film, and even when the opaque film is open and natural light is taken in, the transparent film blocks the outside air. As a result, it is possible to enhance the cooling and heating effect in the room and prevent rainwater and the like from entering.

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 to 8 show an embodiment of a membrane roof structure according to the present invention, FIG. 1 is a plan view of a large space facility to which the membrane roof structure of the present invention is applied, and FIG. 2 is A-A in FIG. 2 is an enlarged sectional view taken along line B in FIG. 2, FIG. 4 is a sectional view taken along line CC in FIG. 3, and FIG. 5 is an enlarged sectional view taken along line D in FIG. 6 is an enlarged front view of the end of the guide rail,
FIG. 7 is an enlarged side view of the end portion of the guide rail, and FIG. 8 is an enlarged perspective view of a main portion.

That is, the large space facility 12 to which the structure of the membrane roof 10 of the present embodiment is applied has a circular shape as shown in FIG. 1, and the circular outer wall 1 surrounding the outside of the large space facility 12 is formed.
An arch beam 16 is installed between the upper ends of the membranes 4, and a membrane 18 is attached to the arch beam 16 to form the membrane roof 10.

A plurality of arch beams 16 are arranged in parallel at substantially equal intervals, and each arch beam 16 forms a convex spherical skeleton. On the other hand, the film body 18 is formed as a double film by a transparent film 20 formed as an outer film and an opaque film 22 formed as an inner film.

The transparent film 20 is cut along substantially the shape of the space surrounded by the upper ends of the arch beams 16 and the outer wall 14, and the cut transparent film pieces 20a are shown in FIGS. As described above, the arch beams 16 are fixedly mounted with a liquid-tight structure between the upper ends of the arch beams 16 via the mounting members 24.

On the other hand, the opaque film 22 is cut along substantially the shape of the space surrounded by the lower ends of the arch beams 16 and the outer wall 14, and the cut opaque film pieces 22a.
Both ends in the width direction of are supported by guide members 26 attached to the lower ends of the arch beams 16.

As shown in FIG. 5, the guide member 26 has guide rails 26a formed at both ends thereof, and an intermediate portion thereof is fixed to the arch beam 16 via a piece angle 28 via a bolt 30 and a nut 30a. To be done. The guide rail 26a is formed by the arch beams 1 adjacent to each other.
Guide rail 26 of guide member 26 attached to 6
It is arranged to face a in a pair.

Each of the guide rails 26a has a circular cross section in which the opposite sides are cut out.
The end portion of the opaque film piece 22a is inserted in b.
The wire 3 as a moving member is provided in the guide rail 26a.
2 is fitted. Then, the end of the opaque film piece 22a inserted from the cutout portion 26b has the wire 3
The outer periphery of 2 is wound so as to be relatively movable and folded back, and the folded back portions are adhered to each other.

The guide rail 26a and the opaque film piece 22a are separated from each other at the central portion of the arch beam 16. A sheave 34 is provided at the separated end of each guide rail 26a as shown in FIGS.

The sheave 34 is arranged so that the center line of the guide rail 26a is tangential to the lower end portion of the sheave 34, and the wire 32 fitted to the guide rail 26a goes from the lower side to the upper side of the sheave 34. It is supposed to go around. The wire 32 circling the sheave 34 is guided back to the receiving member 36 fixed to the side surface of the arch beam 16. Incidentally, the sheave 34 is provided with an adjuster 38 for varying the tension of the wire 32, and the sheave 34 can finely adjust the position of the sheave 34 in the extending direction of the guide rail 26a via the adjuster 38. A sliding member 36a is attached to the sliding portion of the wire 32 of the receiving member 36.

A reinforcing material 40 made of vinyl chloride is attached to the separated end of the opaque film piece 22a, and the reinforcing material 40 is fixed to the wire 32.

On the other hand, the outer wall 14 of the guide rail 26a.
As shown in FIG. 2, a storage case 42 is provided at the side end portion, and a drive means 44 for sequentially feeding the wire 32 is provided in the storage case 42. The opaque film piece 22a, which is pulled by the drive means 44 when the wire 32 is sequentially fed, is housed in the housing 42.

In the membrane roof structure of the present embodiment having the above-described structure, the transparent membrane 20 serving as the outer membrane and the opaque membrane 22 serving as the inner membrane are constructed as a double membrane structure. Both ends of the opaque film piece 22a constituting the wire 3 are respectively fitted to the pair of guide rails 26a.
It is wound so that it can move relative to 2. Therefore, the wire 3 wound around the sheave 34 by operating the driving means 44
By feeding 2 in sequence, the central division side end of the opaque film piece 22a fixed to the wire 32 via the reinforcing member 40 can move along with the wire 32 along the guide rail 26a.

Therefore, the opaque membrane piece 22a closes the inside of the membrane roof 10 by progressively feeding the wire 32 so that the opaque membrane piece 22a moves toward the central portion side of the arch beam 16, and the membrane roof 10 is closed. Transparent film 2 covering the outside of
Natural light introduced from 0 can be blocked by the opaque film 22. In this way, by blocking the natural light with the opaque film 22, the effect of artificial illumination (not shown) is sufficiently exerted,
The effect of the event can be greatly improved.

On the other hand, by driving the wire 32 in a direction opposite to the blocking direction, the opaque film piece 22a can move toward the outer wall 14 to open the inside of the film roof 10. Therefore, by opening the opaque film 22 in this way, natural light can be taken into the large space facility 12 through the transparent film 20, and a situation suitable for athletic competitions such as baseball can be created. Further, even when the opaque film 22 is open, the outside of the film roof 10 is covered with the transparent film 20, so that it is possible to prevent the outside air from affecting the facility and enhance the cooling and heating effect. It is possible to prevent rainwater from entering.

As described above, in the membrane roof structure of this embodiment, since the opaque membrane 22 serving as the inner membrane can be opened and closed to freely take in and block natural light, the large space facility 12 can be used. Can be significantly expanded.

FIG. 9 shows another embodiment, in which the guide rail 5
0 is provided with a pair of rollers 52 in the vertical direction, and the opaque film piece 22a is attached to the wire 32 between the rollers 52.
The winding part of is arranged.

Therefore, in this embodiment, the rotation of the roller 52 makes the movement of the opaque film piece 22a smoother, the opening / closing operation of the transparent film 22 can be smoothly performed, and the power of the driving means 44 is reduced. It is possible to reduce the size of the lever driving means 44.

FIG. 10 shows another embodiment in which the guide rail 60 is formed in a channel shape in cross section and the wire 32 is formed.
A roller 64 having a bearing (not shown) is attached to the opaque film piece 22a wound around the roller via a shank 62, and the roller 64 rolls on the guide rail 60.

Therefore, in this embodiment, the roller 64, which has a significantly reduced rotational resistance via the bearing, rolls on the guide rail 60 to move the wound portion of the opaque film piece 22a. The movement can be performed more smoothly.

[0029]

As described above, in the membrane roof structure according to claim 1 of the present invention, by moving the moving member along the guide rail via the driving means, the moving member and the moving member are flexible. Since the film is opened and closed, natural light can be freely taken in and blocked by forming the flexible film with an opaque film. Therefore, it is possible to remarkably expand the scope of use of the facility adopting the membrane roof structure of the present invention.

Further, in the membrane roof structure according to the second aspect of the present invention, the outer portion of the membrane roof is fixedly covered with the transparent membrane, and the opaque membrane is opened and closed in the inner portion of the transparent membrane. Therefore, even if the double film is composed of the transparent film and the opaque film and the opaque film is opened to take in natural light, the transparent film shuts off the outside air to enhance the cooling and heating effect in the room, and the rain water etc. It has various excellent effects of being able to prevent the entry of

[Brief description of drawings]

FIG. 1 is a plan view showing an example of a large space facility to which a membrane roof structure of the present invention is applied.

FIG. 2 is an enlarged sectional view taken along the line AA in FIG.

FIG. 3 is an enlarged cross-sectional view of portion B in FIG.

FIG. 4 is a cross-sectional view of essential parts taken along the line CC in FIG.

5 is an enlarged cross-sectional view of a D portion in FIG.

FIG. 6 is an enlarged front view of a guide rail end portion applied to one embodiment of the present invention.

FIG. 7 is an enlarged side view of a guide rail end portion applied to one embodiment of the present invention.

FIG. 8 is an enlarged perspective view of a main part showing an embodiment of the present invention.

FIG. 9 is an enlarged sectional view of an essential part showing another embodiment of the present invention.

FIG. 10 is an enlarged cross-sectional view of an essential part showing still another embodiment of the present invention.

[Explanation of symbols]

10 Membrane Roof 12 Large Space Facility 14 Outer Wall 16 Arch Beam 18 Membrane 20 Membrane 20 Transparent Membrane 22 Opaque Membrane 26a Guide Rail 32 Wire (Movement Member) 44 Drive Means

Claims (2)

[Claims] 1. A pair of guide rails arranged along the cross-sectional shape of the membrane roof, a flexible membrane covering between the pair of guide rails, and attached to both ends in the width direction of the flexible membrane. A membrane roof structure comprising: a moving member that is guided and moved by the guide rail; and a driving unit that moves the moving member and opens and closes a flexible film together with the moving member. 2. A transparent membrane that fixedly covers an outer portion of the membrane roof, a pair of guide rails arranged along the cross-sectional shape of the membrane roof in the inner portion of the transparent membrane, and a pair of guide rails. A flexible opaque film covering the space, a moving member attached to both ends of the opaque film in the width direction and moved by being guided by the guide rails, and a moving member that moves the opaque film together with the moving member. A membrane roof structure comprising: a drive means for opening and closing.